Sixteenth Basket of Mantaos

Imagine being forced to live, after death, as incorporeal bodies trapped in a vast space of nothingness for thousands of years, with nothing to do but exchanging past memories with other cohabitants (read: weirdos).  Everybody wanted out, but there was no way to leave the Void... 
Until one day, a young man was finally summoned, as a powerful but reluctant mentor, by a bubbly and motivated but completely naive young girl. Baiyi, finally out of the Void, was the only one who could save all of the other 32 souls from their prison and his summoner might just be The Key to their freedom.
However, Baiyi had to use the techniques and abilities the other souls had taught him throughout the years, and together with his own extensive knowledge of anime and game tropes from his shady and dangerous past as an otaku, to face the biggest challenge of them all: training the clumsy young girl he was forced to partner up with… into a competent sorcerer!

EndlessFantasy Translation 

Why Did You Summon Me？

Before, the monster had only looked somewhat surreal.

Now, however, its appearance was so bizarre to behold, if it starred in a movie back on Earth, that movie would be rated 'R' and possess a 'parental discretion advisable' warning. Its current appearance was not something the visual effects in B-movies could hope to achieve.

"Oh! Now, this is a body I would call 'perfection'!" The monster said, but its voice was no longer as regal and commanding as a god's. Instead, it now spoke in the cunning manner known to demons. Baiyi could almost smell the stench of demons' breath from the monster. Only demons would appreciate the monster' grotesque look.

Locked Into A Stuggle